RO87012B1 - Process for manufacturing carbamide granules - Google Patents
Process for manufacturing carbamide granulesInfo
- Publication number
- RO87012B1 RO87012B1 RO111806A RO11180683A RO87012B1 RO 87012 B1 RO87012 B1 RO 87012B1 RO 111806 A RO111806 A RO 111806A RO 11180683 A RO11180683 A RO 11180683A RO 87012 B1 RO87012 B1 RO 87012B1
- Authority
- RO
- Romania
- Prior art keywords
- granules
- urea
- concentration
- temperature
- manufacturing
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract 5
- 239000004202 carbamide Substances 0.000 title abstract 4
- 239000008187 granular material Substances 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 235000013877 carbamide Nutrition 0.000 title 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 238000005469 granulation Methods 0.000 abstract 2
- 230000003179 granulation Effects 0.000 abstract 2
- 229910002551 Fe-Mn Inorganic materials 0.000 abstract 1
- 229910017082 Fe-Si Inorganic materials 0.000 abstract 1
- 229910017133 Fe—Si Inorganic materials 0.000 abstract 1
- 229910003638 H2SiF6 Inorganic materials 0.000 abstract 1
- 235000013405 beer Nutrition 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 238000009331 sowing Methods 0.000 abstract 1
- ZEFWRWWINDLIIV-UHFFFAOYSA-N tetrafluorosilane;dihydrofluoride Chemical compound F.F.F[Si](F)(F)F ZEFWRWWINDLIIV-UHFFFAOYSA-N 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
Landscapes
- Fertilizers (AREA)
Abstract
Inventia se refera la un procedeu pentru fabricarea granulelor de uree în care, în scopul obtinerii unor granule cu rezistenta mecanica marita, se disperseaza în solutia de uree având concentratie de 72-80% si temperatura de 100 degree C, sau în topitura de uree avînd concentratia de 99,5-99,7% si o temperatura de 140-145 degree C, înaintea intrarii în conul de granulare, în talerul sau tamburul de granulare, agenti de însamîntare avînd dimensiunea particulelor de 6-120 niu, de preferinta 20-100 niu, alesi dintre carbonat de calciu rezidual, cenusa de termocentrala, bioxid de siliciu rezidual rezultat de la fabricarea H2SiF6, compusi de electrobilire din siderurgia beferoasa continînd Fe-Si sau Fe-Mn.The invention relates to a process for the manufacture of urea granules wherein, in order to obtain granules with increased mechanical strength, it is dispersed in the urea solution having a concentration of 72-80% and a temperature of 100 ° C, or in the urea melt having a concentration of 99.5-99.7% and a temperature of 140-145 ° C, prior to entering into the granulation cone, in the granulation drum or granule, sowing agents having a particle size of 6-120 μm, preferably 20- 100, selected from residual calcium carbonate, ash waste, residual silicon dioxide resulting from the production of H2SiF6, electrobiling compounds of beer iron, containing Fe-Si or Fe-Mn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO111806A RO87012B1 (en) | 1983-08-03 | 1983-08-03 | Process for manufacturing carbamide granules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO111806A RO87012B1 (en) | 1983-08-03 | 1983-08-03 | Process for manufacturing carbamide granules |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO87012A2 RO87012A2 (en) | 1985-05-20 |
| RO87012B1 true RO87012B1 (en) | 1985-05-31 |
Family
ID=20113498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO111806A RO87012B1 (en) | 1983-08-03 | 1983-08-03 | Process for manufacturing carbamide granules |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO87012B1 (en) |
-
1983
- 1983-08-03 RO RO111806A patent/RO87012B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO87012A2 (en) | 1985-05-20 |
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